Charlie is angry. She is an artist, and she is angry at her group. "Artists have to be the most persnickety group on the planet." She told Leo.

He seemed to understand her exasperation as the customer that started the tirade checked out at the register with him and commented, "I have only used cerulean. I just don't know how this blue is going to work for me. Can I bring it back if it's not right? Oh, but that will ruin my painting! I don't know if I should risk it. I wonder if I should get this or just order cerulean on line?"

Leo just listened and waited. When the customer didn't decide, he prompted, "Would you like to purchase the paint?"

Another long debate followed, and I could start to see why Charlie gets so frustrated. I also see what Charlie is not seeing: the artists are frightened. They have found A Way to do something, and any changes threaten their success at a known activity. Charlie seems to lack compassion for people who already know how to do everything and need to do it repeatedly the same way. Doesn't she say all the time, "if it ain't broke, don't fix it"?